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CereProc R Ltd. have recently released a beta version of a commercial unit selection synthesiser featuring XML control of speech style. The system is freely available for academic use and allows fine control of the rendered speech as well as full timings to interface with avatars and other animation. With reference to this system we will discuss current… (More)

Previous work in HCI has shown that ambiguity, normally avoided in interaction design, can contribute to a user's engagement by increasing interest and uncertainty. In this work, we create and evaluate synthetic utterances where there is a conflict between text content, and the emotion in the voice. We show that: 1) text content measurably alters the… (More)

Building high quality synthesis systems with open domain vocabulary and a small audio database is a challenging problem, even when the targeted application is well constrained. Mono-phone unit concatenation (as opposed to diphone) is an approach that can compensate for the poor unit coverage that a small database implies. However, joining at phone… (More)